[info] Using makefile-style concurrent boot in runlevel 2. [ 24.851233] audit: type=1800 audit(1543145698.287:21): pid=5775 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.870756] audit: type=1800 audit(1543145698.287:22): pid=5775 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.51' (ECDSA) to the list of known hosts. 2018/11/25 11:36:07 parsed 1 programs 2018/11/25 11:36:09 executed programs: 0 syzkaller login: [ 96.199057] IPVS: ftp: loaded support on port[0] = 21 [ 96.448722] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.456323] bridge0: port 1(bridge_slave_0) entered disabled state [ 96.464182] device bridge_slave_0 entered promiscuous mode [ 96.483548] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.490223] bridge0: port 2(bridge_slave_1) entered disabled state [ 96.497413] device bridge_slave_1 entered promiscuous mode [ 96.515754] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 96.534661] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 96.588291] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 96.608253] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 96.686208] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 96.693841] team0: Port device team_slave_0 added [ 96.713740] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 96.721102] team0: Port device team_slave_1 added [ 96.738651] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 96.761301] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 96.780396] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 96.800332] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 96.945177] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.951906] bridge0: port 2(bridge_slave_1) entered forwarding state [ 96.958989] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.965385] bridge0: port 1(bridge_slave_0) entered forwarding state [ 97.486003] 8021q: adding VLAN 0 to HW filter on device bond0 [ 97.538390] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 97.589008] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 97.595447] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 97.604235] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 97.652852] 8021q: adding VLAN 0 to HW filter on device team0 2018/11/25 11:36:14 executed programs: 30 2018/11/25 11:36:19 executed programs: 75 2018/11/25 11:36:24 executed programs: 121 2018/11/25 11:36:30 executed programs: 167 2018/11/25 11:36:35 executed programs: 214 2018/11/25 11:36:40 executed programs: 260 [ 129.697892] ------------[ cut here ]------------ [ 129.702910] generic_make_request: Trying to write to read-only block-device loop0 (partno 0) [ 129.712197] WARNING: CPU: 1 PID: 8121 at block/blk-core.c:2170 generic_make_request_checks+0xef9/0x26c0 [ 129.721738] Kernel panic - not syncing: panic_on_warn set ... [ 129.727733] CPU: 1 PID: 8121 Comm: syz-executor0 Not tainted 4.20.0-rc3+ #251 [ 129.735124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 129.744458] Call Trace: [ 129.747025] dump_stack+0x244/0x39d [ 129.750631] ? dump_stack_print_info.cold.1+0x20/0x20 [ 129.755807] panic+0x2ad/0x55c [ 129.758977] ? add_taint.cold.5+0x16/0x16 [ 129.763330] ? __warn.cold.8+0x5/0x45 [ 129.767117] ? __warn+0xe8/0x1d0 [ 129.770764] ? generic_make_request_checks+0xef9/0x26c0 [ 129.776127] __warn.cold.8+0x20/0x45 [ 129.780125] ? rcu_softirq_qs+0x20/0x20 [ 129.784080] ? generic_make_request_checks+0xef9/0x26c0 [ 129.789425] report_bug+0x254/0x2d0 [ 129.793046] do_error_trap+0x11b/0x200 [ 129.797192] do_invalid_op+0x36/0x40 [ 129.800897] ? generic_make_request_checks+0xef9/0x26c0 [ 129.806247] invalid_op+0x14/0x20 [ 129.809682] RIP: 0010:generic_make_request_checks+0xef9/0x26c0 [ 129.815630] Code: 8b ad e4 04 00 00 4c 8d b5 78 ff ff ff 48 89 df 4c 89 f6 e8 99 93 07 00 48 c7 c7 60 2b 5f 88 48 89 c6 44 89 ea e8 d7 d3 cf fd <0f> 0b e9 c1 f4 ff ff e8 6b 73 06 fe e8 26 4b f0 fd e8 61 73 06 fe [ 129.834652] RSP: 0018:ffff8881d91ae3c0 EFLAGS: 00010286 [ 129.839998] RAX: 0000000000000000 RBX: ffff8881c37c7340 RCX: 0000000000000000 [ 129.847250] RDX: 0000000000000000 RSI: ffffffff8165eaf5 RDI: 0000000000000005 [ 129.854504] RBP: ffff8881d91ae6c0 R08: ffff8881b6800340 R09: ffffed103b5e5020 [ 129.861937] R10: ffffed103b5e5020 R11: ffff8881daf28107 R12: ffff8881c37c7348 [ 129.869190] R13: 0000000000000000 R14: ffff8881d91ae638 R15: ffff8881d195a000 [ 129.876467] ? vprintk_func+0x85/0x181 [ 129.880341] ? trace_event_raw_event_block_rq_requeue+0x6d0/0x6d0 [ 129.886552] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 129.891634] ? depot_save_stack+0x292/0x470 [ 129.895934] ? __lock_acquire+0x62f/0x4c20 [ 129.900161] ? save_stack+0x43/0xd0 [ 129.903767] ? kasan_kmalloc+0xc7/0xe0 [ 129.907633] ? kasan_slab_alloc+0x12/0x20 [ 129.911960] ? kmem_cache_alloc+0x12e/0x730 [ 129.916355] ? mempool_alloc_slab+0x44/0x60 [ 129.920668] ? mempool_alloc+0x193/0x4a0 [ 129.924711] ? bio_alloc_bioset+0x3a8/0x700 [ 129.929018] ? submit_bh_wbc+0x14b/0x790 [ 129.933067] ? __block_write_full_page+0x93b/0x14a0 [ 129.938064] ? block_write_full_page+0x221/0x270 [ 129.942803] ? blkdev_writepage+0x24/0x30 [ 129.946946] ? mark_held_locks+0x130/0x130 [ 129.951161] ? ____fput+0x15/0x20 [ 129.954710] ? task_work_run+0x1e8/0x2a0 [ 129.958762] ? do_exit+0x1ad6/0x26d0 [ 129.962459] ? do_group_exit+0x177/0x440 [ 129.966504] ? __ia32_sys_exit_group+0x3e/0x50 [ 129.971066] ? do_fast_syscall_32+0x34d/0xfb2 [ 129.975542] ? entry_SYSENTER_compat+0x70/0x7f [ 129.980112] ? zap_class+0x640/0x640 [ 129.983813] ? check_preemption_disabled+0x48/0x280 [ 129.988986] generic_make_request+0x2c7/0x18a0 [ 129.993730] ? blk_get_request+0x800/0x800 [ 129.997946] ? rcu_read_lock_sched_held+0x14f/0x180 [ 130.003172] ? zap_class+0x640/0x640 [ 130.006869] ? zap_class+0x640/0x640 [ 130.010586] ? mempool_alloc_slab+0x44/0x60 [ 130.014887] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 130.020412] ? check_preemption_disabled+0x48/0x280 [ 130.025433] ? find_held_lock+0x36/0x1c0 [ 130.029478] ? guard_bio_eod+0x1f4/0x630 [ 130.033519] ? lock_downgrade+0x900/0x900 [ 130.037644] ? check_preemption_disabled+0x48/0x280 [ 130.042641] submit_bio+0xba/0x460 [ 130.046178] ? submit_bio+0xba/0x460 [ 130.049869] ? rcu_softirq_qs+0x20/0x20 [ 130.053819] ? generic_make_request+0x18a0/0x18a0 [ 130.058637] ? __bio_add_page+0x134/0x290 [ 130.062769] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 130.067769] ? guard_bio_eod+0x2bb/0x630 [ 130.071811] submit_bh_wbc+0x5de/0x790 [ 130.075684] __block_write_full_page+0x93b/0x14a0 [ 130.080508] ? I_BDEV+0x20/0x20 [ 130.083771] ? bh_uptodate_or_lock+0x160/0x160 [ 130.088340] ? submit_bh_wbc+0x790/0x790 [ 130.092510] ? trace_hardirqs_on+0xbd/0x310 [ 130.096827] ? tag_pages_for_writeback+0x5ff/0x7d0 [ 130.101758] ? zap_class+0x640/0x640 [ 130.105458] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 130.110976] ? check_preemption_disabled+0x48/0x280 [ 130.115980] block_write_full_page+0x221/0x270 [ 130.120545] ? I_BDEV+0x20/0x20 [ 130.123809] blkdev_writepage+0x24/0x30 [ 130.127851] __writepage+0x69/0xe0 [ 130.131376] write_cache_pages+0xc91/0x1e20 [ 130.135679] ? __wb_update_bandwidth+0x680/0x680 [ 130.140421] ? clear_page_dirty_for_io+0x1900/0x1900 [ 130.145606] ? print_usage_bug+0xc0/0xc0 [ 130.149657] ? __lock_acquire+0x62f/0x4c20 [ 130.153872] ? zap_class+0x640/0x640 [ 130.157588] ? print_usage_bug+0xc0/0xc0 [ 130.161655] ? mark_held_locks+0x130/0x130 [ 130.165871] ? mark_held_locks+0x130/0x130 [ 130.170094] ? lock_acquire+0x1ed/0x520 [ 130.174047] ? __blkdev_put+0xc2/0x830 [ 130.177915] ? lock_release+0xa00/0xa00 [ 130.181868] ? perf_trace_sched_process_exec+0x860/0x860 [ 130.187298] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 130.192385] ? zap_class+0x640/0x640 [ 130.196090] ? __mutex_lock+0x85e/0x16f0 [ 130.200130] ? blk_start_plug+0xcc/0x370 [ 130.204182] ? find_held_lock+0x36/0x1c0 [ 130.208223] ? blk_lld_busy+0x70/0x70 [ 130.212123] ? wbc_attach_and_unlock_inode+0x5c0/0xa30 [ 130.217558] ? lock_downgrade+0x900/0x900 [ 130.221782] ? zap_class+0x640/0x640 [ 130.225562] ? kasan_check_read+0x11/0x20 [ 130.229699] generic_writepages+0xda/0x150 [ 130.234058] ? write_cache_pages+0x1e20/0x1e20 [ 130.238888] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 130.244767] blkdev_writepages+0x1d/0x30 [ 130.248821] ? blkdev_readpages+0x40/0x40 [ 130.252955] do_writepages+0x9a/0x1a0 [ 130.256743] __filemap_fdatawrite_range+0x364/0x4a0 [ 130.261780] ? delete_from_page_cache_batch+0x1640/0x1640 [ 130.267543] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 130.272466] filemap_write_and_wait+0x44/0xc0 [ 130.276948] __blkdev_put+0x202/0x830 [ 130.280736] ? bd_set_size+0x370/0x370 [ 130.284636] ? do_raw_spin_trylock+0x270/0x270 [ 130.289379] ? fsnotify_first_mark+0x350/0x350 [ 130.293967] blkdev_put+0x98/0x540 [ 130.297490] ? blkdev_put+0x540/0x540 [ 130.301492] blkdev_close+0x8b/0xb0 [ 130.305162] __fput+0x385/0xa30 [ 130.308578] ? get_max_files+0x20/0x20 [ 130.312477] ? trace_hardirqs_on+0xbd/0x310 [ 130.316801] ? trace_hardirqs_off_caller+0x310/0x310 [ 130.322121] ? perf_trace_sched_process_exec+0x860/0x860 [ 130.327563] ____fput+0x15/0x20 [ 130.330826] task_work_run+0x1e8/0x2a0 [ 130.334720] ? task_work_cancel+0x240/0x240 [ 130.339041] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 130.344564] ? switch_task_namespaces+0x9d/0xd0 [ 130.349233] do_exit+0x1ad6/0x26d0 [ 130.352891] ? mm_update_next_owner+0x990/0x990 [ 130.357741] ? remove_entity_load_avg+0x228/0x2e0 [ 130.362577] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 130.367666] ? account_kernel_stack+0x2cf/0x3e0 [ 130.372320] ? account_kernel_stack+0x2cf/0x3e0 [ 130.376983] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 130.381575] ? trace_hardirqs_on+0xbd/0x310 [ 130.385880] ? remove_entity_load_avg+0x228/0x2e0 [ 130.390709] ? __free_pages+0x149/0x190 [ 130.394667] ? free_unref_page+0x960/0x960 [ 130.398894] ? kasan_check_write+0x14/0x20 [ 130.403366] ? finish_task_switch+0x615/0x910 [ 130.408096] ? __switch_to_asm+0x40/0x70 [ 130.412234] ? preempt_notifier_register+0x200/0x200 [ 130.419861] ? __switch_to_asm+0x34/0x70 [ 130.426366] ? __switch_to_asm+0x34/0x70 [ 130.430412] ? __switch_to_asm+0x40/0x70 [ 130.436026] ? __switch_to_asm+0x34/0x70 [ 130.440089] ? __switch_to_asm+0x40/0x70 [ 130.444325] ? __switch_to_asm+0x34/0x70 [ 130.448366] ? __switch_to_asm+0x40/0x70 [ 130.452409] ? __switch_to_asm+0x34/0x70 [ 130.456458] ? __switch_to_asm+0x34/0x70 [ 130.460506] ? __switch_to_asm+0x34/0x70 [ 130.464564] ? __switch_to_asm+0x40/0x70 [ 130.468765] ? __switch_to_asm+0x34/0x70 [ 130.472811] ? __switch_to_asm+0x40/0x70 [ 130.476888] ? __schedule+0x8d7/0x21d0 [ 130.480759] ? blkcg_maybe_throttle_current+0xa38/0x1080 [ 130.486194] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 130.492342] ? __sched_text_start+0x8/0x8 [ 130.496656] ? find_held_lock+0x36/0x1c0 [ 130.500710] ? find_held_lock+0x36/0x1c0 [ 130.504887] ? do_group_exit+0x35f/0x440 [ 130.508934] ? _raw_spin_unlock_irq+0x27/0x80 [ 130.513415] ? _raw_spin_unlock_irq+0x27/0x80 [ 130.518087] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 130.522680] ? preempt_schedule+0x4d/0x60 [ 130.526849] ? preempt_schedule_common+0x1f/0xe0 [ 130.531691] ? preempt_schedule+0x4d/0x60 [ 130.535826] ? ___preempt_schedule+0x16/0x18 [ 130.540472] do_group_exit+0x177/0x440 [ 130.544520] ? __ia32_sys_exit+0x50/0x50 [ 130.548575] ? trace_hardirqs_off_caller+0x310/0x310 [ 130.553672] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 130.559203] __ia32_sys_exit_group+0x3e/0x50 [ 130.563603] do_fast_syscall_32+0x34d/0xfb2 [ 130.567912] ? do_int80_syscall_32+0x890/0x890 [ 130.572570] ? entry_SYSENTER_compat+0x68/0x7f [ 130.577293] ? trace_hardirqs_off_caller+0xbb/0x310 [ 130.582314] ? do_syscall_64+0x820/0x820 [ 130.586370] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 130.591361] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 130.596196] ? trace_hardirqs_on_caller+0x310/0x310 [ 130.601231] ? prepare_exit_to_usermode+0x291/0x3b0 [ 130.606235] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 130.611073] entry_SYSENTER_compat+0x70/0x7f [ 130.615468] RIP: 0023:0xf7f29a29 [ 130.618820] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 130.637730] RSP: 002b:000000000845fd7c EFLAGS: 00000202 ORIG_RAX: 00000000000000fc [ 130.645423] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000000000 [ 130.652755] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000000000805544b [ 130.660024] RBP: 00000000fffffff7 R08: 0000000000000000 R09: 0000000000000000 [ 130.667307] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 130.674563] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 130.683379] Kernel Offset: disabled [ 130.687106] Rebooting in 86400 seconds..